Solium Capital LLC

What Solium Capital LLC does

Solium Capital LLC operates in the employee equity plan administration and equity management software market, primarily under the "Shareworks by Morgan Stanley" brand. The firm delivers equity administration, cap-table management, Employee Stock Purchase Plan (ESPP) administration, 409A valuations, financial reporting, and tender-offer / liquidity solutions to corporate issuers, their executives, employees, and venture capital firms across the Americas — with localized service in the United States, English-speaking Canada, and French-speaking Canada. The platform is positioned both for early-stage companies that have "outgrown" spreadsheet- or small-business cap-table tools and for large public-company issuers, with explicit support for private companies from small businesses through startups and enterprises. The company's underlying technology stack centers on SaaS-based equity record-keeping, integration with corporate HR, payroll, and tax systems, and compliance-grade reporting built for regulated equity compensation.

Solium is a wholly-owned, private subsidiary of Morgan Stanley following the bank's approximately $1.1 billion acquisition completed in February 2019. The company was subsequently re-branded as Shareworks and integrated into the "Morgan Stanley at Work" platform — a corporate-issuer and employee financial-wellness offering that also houses Morgan Stanley Wealth, E*TRADE brokerage, Quovo data services, and a Vestwell-powered 529 education-financing distribution channel. The integration positions Shareworks as the equity-administration pillar of a multi-product suite sold to corporate clients under a consultative, sales-led go-to-market motion.

The business model is subscription- and recurring-fee-based, with quote-based enterprise pricing rather than transparent list pricing, consistent with the stock-plan administration industry standard. Revenue mechanics combine per-participant administration fees, ESPP transaction fees, 409A valuation engagements, and tender-offer execution fees. Distribution is conducted through a sales-led, consultative enterprise motion; the parent bank's global wealth-management network — which reported $4.6 trillion in client balances, $8.5B of quarterly wealth-management revenue, and $118B in net new assets — provides embedded cross-sell and channel reach that no standalone competitor enjoys. The headcount is reported at 501–1,000 employees, and the only specifically named customer in the supplied data is MongoDB, used as a case-study reference for equity-tax calculation workflows.

Name

Solium Capital LLC

Legal name

Solium Capital LLC

Website

https://shareworks.com

Company type

Private

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Solium Capital LLC (operating as Shareworks by Morgan Stanley) provides employee equity plan administration, cap-table management, 409A valuations, ESPP and tender-offer services to public and private companies, executives, and venture capital firms across the United States and Canada.

Ownership category

akta.pro rank

Product category

Equity Compensation Administration

NAICS

Portfolio Management and Investment Advice (523940)

SIC

Investment Advice (6282)

akta.pro primary industry

Capital Markets Advisory (IPO Readiness, SPAC, ECM/DCM Advisory) (BPAHAOAL)

akta.pro secondary industry

Institutional Consulting RIAs (OCIO/Endowments/Foundations/Pensions) (FSAAACAG)

Keywords

• Equity compensation administration
• Stock plan management
• 409A valuation services
• Workplace financial solutions
• Equity administration platform

Headquarters

HQ city

Azusa

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Workplace Financial Solutions Services: Morgan Stanley at Work provides workplace financial benefit solutions to employers, including equity administration, retirement planning, and financial wellness services. Revenue is generated through service fees charged to employer clients for stock plan administration and related financial services.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Solium Capital, operating as Morgan Stanley at Work, provides workplace financial benefit solutions to employers through a stock plan administration technology platform for equity compensation management. The company offers stock administration, plan implementation, tax calculations, and document processing for both public and private companies, alongside 409A valuations, liquidity solutions, financial wellness, and retirement services.

Product overview

Morgan Stanley at Work is a comprehensive workplace financial benefits platform that offers a unified suite of solutions including equity compensation administration, financial wellness programs, retirement planning, and deferred compensation. Solium Capital LLC operates as an affiliated subsidiary within this ecosystem, providing employee stock plan solutions. The platform serves companies across various stages from startup to enterprise, including private companies, public companies, venture capital firms, and law firms. Previously, Solium operated under its own brand (including Shareworks and StockPlan Connect products), which have been integrated into the Morgan Stanley at Work offering alongside E*TRADE stock plan accounts.

Differentiator

Problem solved

Functional benefit

Products and services

• Morgan Stanley at Work Equity Administration for Public Companies Stock plan administration, plan implementation, tax calculations, and document processing for publicly traded companies and their employees.
• Morgan Stanley at Work Equity Administration for Private Companies Stock plan administration, plan implementation, tax calculations, and document processing for private companies and their employees, supporting pre-IPO and venture-backed issuers.
• 409A Valuation Services Independent 409A valuation services for private companies to support option pricing, audits, and financial reporting requirements.
• Liquidity Solutions Programs enabling private company employees and shareholders to access liquidity for vested equity, including tender offers and secondary transactions.
• Executive Services / Equity Compensation Services Concierge-style equity compensation services tailored to senior executives, supporting complex awards, tax planning, and reporting needs.
• Retirement Solutions Workplace retirement plan services for corporate clients, delivered as part of the broader Morgan Stanley at Work financial benefit platform.
• Deferred Compensation Solutions Nonqualified deferred compensation plan design, administration, and reporting for corporate executives.
• Financial Wellness Program Financial wellness education and tools offered to employees of corporate clients to help them understand and manage their equity awards and overall financial health.
• Saving and Giving (Charitable Giving) Solutions Charitable giving and donor-advised fund solutions offered through the Morgan Stanley at Work workplace platform for employees of corporate clients.
• Financial Reporting Services Financial reporting, compliance, and disclosure support for corporate equity compensation and stock plan programs.
• Global Intelligence Services Global equity plan intelligence and cross-border administration support for multinational corporate clients.

Quantifiable outcome

• 44% of executives lack formal personal financial plans despite participating in equity compensation programs
• +1 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered minor and core.

• Vestwell Holdings Inc.minorStrategic or Co-development PartnerE*TRADE Financial Corporate Services, Inc. (part of Morgan Stanley at Work) has engaged Vestwell Holdings Inc. to offer Education Financing solutions, enabling employers to provide employees student loan and college savings benefits. Vestwell provides loan brokering, lending, and money transmission services while E*TRADE does not make loans or remit funds related to these products.
• Morgan StanleycoreOthersSolium Capital LLC was acquired by Morgan Stanley and operates as part of Morgan Stanley at Work, providing employee stock plan solutions alongside E*TRADE, Solium Plan Managers LLC, and Morgan Stanley Smith Barney LLC.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Carta: Leading equity administration and cap-table management platform for private companies and startups; competes directly with Solium's Shareworks heritage in the private-company segment with overlapping grant management, 409A valuations, and liquidity workflows.
• Computershare: Global leader in equity plan administration, transfer agent services, and employee equity plans; overlaps Solium's offerings at large enterprises and provides multi-jurisdiction coverage Solium lacks in EMEA/APAC.
• Fidelity Stock Plan Services: Operates one of the largest stock plan administration businesses in the U.S., serving both private and public employers; directly competitive with Solium on grant administration, vesting, and compliance reporting for enterprise clients.
• Shareworks (by Morgan Stanley at Work): Solium's historical equity administration brand, now fully integrated into Morgan Stanley at Work; the legacy platform is effectively Solium itself for private-market equity administration.
• Charles Schwab Equity Award Center: Provides equity award administration and brokerage execution for corporate stock plans through Schwab's retail-investor backbone; competes with Solium in the public-company equity plan administration segment.

Emerging players

• EquityZen: Private investment platform that provides share-liquidity solutions for private company employees and shareholders; directly comparable to Solium's Liquidity Solutions capability and now part of the same Morgan Stanley at Work ecosystem.
• Pulley: Equity management and cap-table platform targeting startups; offers 409A valuations, compliance, and integrations; competes with Solium for early-stage private companies with a modern, lighter-weight product experience.

Broad incumbents

• ADP Retirement Services: Workplace retirement plan administration arm of ADP, providing 401(k), financial wellness, and benefits administration at scale; overlaps Morgan Stanley at Work's retirement and financial wellness offerings through a more SMB-centric distribution model.
• E*TRADE Financial Corporate Services: Now operating within Morgan Stanley at Work alongside Solium; historically a direct competitor for equity plan administration; useful comparable for understanding the combined platform's pre-merger scale.

Others

• Vestwell: Retirement and education-finance technology platform; officially partnered with Morgan Stanley at Work (via E*TRADE) to provide student loan and college savings benefits. Adjacent technology partner rather than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/playlist?list=PLMUnYeeTvzNt5Zd5XlqQGQTLrAHS-x1zu
• LinkedInlinkedin.com/showcase/morgan-stanley-at-work

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Solium Capital LLC